Ribbon-operating device for printing-presses.



H. 0. HANSEN. RIBBON OPERATING DEVICE FOR PRINTING PRESSES.

APPLICATION FILED JAN. 7, 1910.

1,007,691, Pfitented Nov. 7, 1911.

HANS C. HANSEN, OF NEWTON, MASSAGHUSETTS.

RIBBON-OPERATING DEVICE non PRINTING-PRESSES.

Specification of Letters Patent.

Patented Nov. 7, 1911.

Application filed January 7,1910. Serial No. 536,857.

To all whom it may concern:

Be it known that I, HANS C. HANSEN, a citizen of the United States,residing at Newton, in the county of Middlesex and State ofMassachusetts, have invented an Improvement in Ribbon-Operating Devicesfor Printing-Presses, of which the following description, in connectionwith the accompanying drawing, is a specification, like characters onthe drawing representing like parts.

This invention resides in a device for carrying and operating an inkribbon and adapted to be placed and used in a printing press.

The object of the device is to enable the simulation of typewrittenmatter upon an ordinary printing press.

The device of this invention holds and operates an inking ribbon in asimple manner so that the printing can be done through the ribbon as inthe case of the ordinary typewriter.

The device is designed to be locked into the printing frame or chase,and the feed of the ribbon is designed to be secured directly from theplaten of the printing press.

The device of this invention comprises two parts, each preferably ofsimilar construction, and each locked in position at opposite sides ofthe composition, thus enabling the ribbon to be fed from one to theother part over the composition back and forth.

The nature of the invention will more {fully appear from theaccompanying description and drawings and will be particularly pointedout in the appended claims.

The drawings represent the preferred form of the invention in connectionwith so much of a printing press as is necessary to understand theoperation.

In the drawings Figure 1 is a top plan view of a form or chase with thedevice shown locked in place; Fig. 2 is a side elevation with a portionof the frame of the chase cutaway as indicated in w-m of Fig. 1; Fig. 3is an enlarged detail plan view of one end of one part of the device;Fig. 4 is a perspective view of the winding handle; Fig. 5 is a sideelevation partially in cross section of one end of one part of thedevice beneath the platen of a printing press.

The invention is shown in Fig. 1 of the drawings with the device lockedin place in the form or chase of an ordinary printing press. In thisview 1 represents the frame of the chase,2the composition or matter setup in type, 3 the usual quoins, while at the right and left sides of thecomposition are shown the two parts of the preferred form of the deviceof this invention.

The device comprises essentially two different parts and both arepreferably of substantially similar construction, although as shown itwill be more convenient to make one member complemental to the other orone right handed and the other left handed. A description of one partwill, therefore, suffice for both. Each part comprises a base memberhaving a main portion 4, the ends of the base member being shown asblocks 5 rigidly secured to the main portion by screws 6. The basemember is made rectangular in shape so that it can readily fit in and belocked in the chase.

A ribbon roll 7 is journaled in the base member longitudinally thereofand provided with a groove and feather 8 by means of which the end ofthe ribbon may be held in place. One end 9 of the roll is made ofpolygonal form so that the roll may be turned by winding handle 10 suchas shown in Fig. 1.

A ribbon guide 11 shown as a bar extends longitudinally of the basemember and is shown as mounted in and carried by a pair of posts 12 and13, constituting what may be termed a ribbon-guiding frame. These postsare yieldingly mounted to move vertically in the base member and arenormally held elevated by coiled springs 14.

Suitable connections are provided for giving an intermittent rotation tothe ribbon roll 7 from the ribbon-guiding frame or one of the posts 12.These connections are shown as a ratchet wheel 15 mounted on the ribbonroll, a detent pawl 16 mounted on the base member and engaging theratchet wheel and provided with an upwardly projecting spring tail 17,an actuating pawl 18 pivotally mounted on the post 12 engaging theratchet wheel and provided with an upwardly projecting spring tail 19.

The cotter pins 20 and 21 are mounted longitudinally in the end blocks 5of the base member in such a position that when pushed in as shown inFig. 3 they come respectively behind the spring tails 19 and 17 of thepawls and maintain the pawls in position for intermittently actuatingthe ribbon roll. When the cotter pins are pulled out or when they arepulled out and pressed in on the other side of the spring tails 19 and17 the pawls fail to actuate or are prevented from actuating the ratchetwheel.

The base member is made of such thickness and it is so positioned in thechase that its upper surface or face is well below the printing surfaceof the type, while the yieldingly mounted posts 12 and 13 project wellabove the level of the printing surface.

The operation of the device will now be apparent. lVith the two parts ofthe device locked in place as shown in Fig. 1 on opposite sides of thecomposition one end of the inking roll is attached to one roll 7 by thefeather 8 and then by means of the winding handle 10 the ribbon is woundup upon the roll. The ribbon is then drawn across the printing surfaceas shown in Fig. 1 and attached to the opposite ribbon roll 7. Thecotter pins 20 and 21 are drawn out and replaced in front of the pawltails 19 and 17 of that part of the device containing the wound-upribbon so as to prevent the actuation of the ribbon roll, while in theother base member containing the roll upon which the ribbon is to bewound the cotter pins are arranged as illustrated in Figs. 3 and 5.

hen the platen 22 of the printing press descends it contacts with theposts 12 and 13 depressing the ribbon onto the type and causing theimpression of the type through the ribbon onto the paper and upon itsretreat etfecting the actuation of the ratchet wheel and ribbon roll inthat part of the de vice where the ribbon is to be wound up. At eachprinting operation in asimilar manner the posts are depressed thusintermittently rotating the roll and winding up the ribbon. vVhen theribbon has been entirely wound up onto the opposite roll the cotter pinsare changed in the two devices and the same operation of the printingpress winds the ribbon back again.

It will thus be seen that an extremely simple and efficient device isprovided for securing the operation of an inking ribbon in a printingpress.

Having fully described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A ribbon operating device for printing presses comprising a pair ofbase members, a ribbon roll journaled in each base member longitudinallythereof, the said base members with the said rolls being adapted to belocked in the chase of the press at opposite sides of the compositionwith the faces of the base members and with the rolls below the level ofthe printing surface, a post vertically mounted in each base member andnormally projecting above the level of the printing surface, connectionsbetween the post and the ribbon roll for giving an intermittent rotationto the latter resulting from the depression of the former as by theplaten of the press.

2. A ribbon operating device for printing presses comprising a pair ofbase members adapted to be locked in the chase of the press at oppositesides of the composition with their faces below the level of theprinting surface, a ribbon roll journaled in each base memberlongitudinally thereof, a ribbon-guiding frame yielding] y mounted ineach base mem her and normally projecting above the level of theprinting surface, connections between said frame and the ribbon roll forgiving an intermittent rotation to the latter from the movement of theformer resulting from its depression as by the platen of the press.

3. A ribbon operating device for printing presses comprising a pair ofbase members adapted to be locked in the chase of the press at oppositesides of the composition with their faces below the level of theprinting surface, a ribbon roll journaled in each base memberlongitudinally thereof, yieldingly mounted posts at each end of eachbase member, a ribbon guide connecting the said posts and extendinglongitudinally of the base member, a ratchet wheel on said ribbon roll,an actuating pawl carried by one of said posts and cooperating with saidratchet wheel to cause the intermittent operation of the ribbon rollupon the upwardmovement of the post after its depression by the platen.

4. A ribbon operating device for printing presses comprising a pair ofbase members adapted to be locked in the chase of the press at oppositesides of the composition with their faces below the level of theprinting surface, a ribbon roll journaled in each base memberlongitudinally thereof, yieldingly mounted posts, one at each end ofeach base member, a ribbon guide connecting the said posts and extendinglongitudinally of the base member, a ratchet wheel on said ribbon roll,an .actuating pawl carried by one of said posts and cooperating withsaid ratchet wheel to cause the intermittent operation of the ribbonroll upon the movement of the post, a detent pawl for said ratchetwheel, and means for efiecting or preventing the co ope ation of theactuating pawl, detent pawl and ratchet.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

HANS C. HANSEN.

Witnesses LEONA CHANDLER, FREDERICK S. GREENLEAF.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

